"I've had a chance to watch up close and personal and see how they do things," he said. "Now I get to actually go through with it."
Griffin injured his left kneecap in the Clippers' final exhibition game last year and missed the entire regular season. He had surgery in January.
Now healthy, Griffin said he has been working out 100 percent for about a month and a half. He has spent time playing with teammate and All-Star Chris Kaman.
Griffin was the No. 1 pick last year out of Oklahoma after earning AP Player of the Year honors.
"I've shaken up some of the rust and gotten some of the rhythm back," he said. "I feel better."
Griffin said he will not play in the NBA summer league. He will, however, practice with the team in Las Vegas.
After a year of waiting to play as a professional, Griffin said he feels relief.
"It's been a dream of mine to play in the NBA for a long, long time," he said.
Two days before the draft, Griffin was in New York to make an appearance for Subway. The Clippers have the No. 8 pick Thursday. He said he is not sure what moves the Clippers might make once free agency starts July 1.
"It depends on what we do with the draft," he said. "We'll see what we need."
Whoever the Clippers choose in the draft, Griffin has a few words of advice for his future teammate. He said to worry about playing -- and not much else.
"Control the things you can control, not worry about the other things," he said.